Has anyones SIP tubless rim nuts gone rusty.
I had the Rims on the scooter for approx 3 months when this started happening and got progressively worse:


My scooter is kept inside in a nice warm garage.
The reason I am asking this is because SIP say noone else has experienced this issue, but they are willing to provide me with a new set of nuts "for a good price".
I was expecting to get a new set and just pay the shipping, SIP normally have a very good customer policy and replace faulty items.
So i was wondering if it really is just mine?
Cheers.